For #23121 - Replace @drawble/ic_readermode with @drawable/mozac_ic_reader_mode

app/src/main/java/org/mozilla/fenix/browser/BrowserFragment.kt

@@ -168,7 +168,7 @@ class BrowserFragment : BaseBrowserFragment(), UserInteractionHandler {
             BrowserToolbar.ToggleButton(
                 image = AppCompatResources.getDrawable(
                     context,
-                    R.drawable.ic_readermode
+                    R.drawable.mozac_ic_reader_mode
                 )!!,
                 imageSelected =
                 AppCompatResources.getDrawable(

app/src/main/res/drawable/ic_readermode.xml

@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- This Source Code Form is subject to the terms of the Mozilla Public
-   - License, v. 2.0. If a copy of the MPL was not distributed with this
-   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24">
-    <path
-        android:fillColor="?primaryText"
-        android:pathData="M6.5 3A2.5 2.5 0 0 0 4 5.5v13A2.5 2.5 0 0 0 6.5 21h11a2.5 2.5 0 0 0 2.5-2.5v-13A2.5 2.5 0 0 0 17.5 3h-11zm12 15.7l-0.8 0.8H6.3l-0.8-0.8V5.3l0.8-0.8h11.4l0.8 0.8v13.4z" />
-    <path
-        android:fillColor="?primaryText"
-        android:pathData="M15.25 8.5h-6.5a0.75 0.75 0 0 1 0-1.5h6.5a0.75 0.75 0 0 1 0 1.5zm0 4h-6.5a0.75 0.75 0 0 1 0-1.5h6.5a0.75 0.75 0 0 1 0 1.5zm-3 4h-3.5a0.75 0.75 0 0 1 0-1.5h3.5a0.75 0.75 0 0 1 0 1.5z" />
-</vector>